Y9 Computing

Question 1

Algorithm

Answer 1

A set of instructions that achieve a task

Question 2

Sequence

Answer 2

Following instructions one after the other

Question 3

Variable

Answer 3

A named container for a value (which can be inspected or altered by the program)

Question 4

Iteration

Answer 4

A repeated set of instructions – common loops include forever while true

Question 5

Selection

Answer 5

A choice of which set of code to follow is dependent on a true of false question – common selections are “if then else” “when..do”

Question 6

Program

Answer 6

A set of algorithms that have been created to solve a problem – commonly known as apps (application software)

Question 7

Input

Answer 7

A method of entering data onto a computer system usually with an input device

Question 8

Output

Answer 8

A method of displaying information to a user e.g. a screen

Question 9

LED

Answer 9

Light emitting diode; a light. They now come in several different colours including red

Question 10

CPU

Answer 10

The central processing unit – every command passes through the CPU

Question 11

RAM

Answer 11

Random access memory; very fast

Question 12

ROM

Answer 12

Read only memory; non-volatile memory

Question 13

Volatile

Answer 13

Data is lost when the machine is turned off

Question 14

BIOS

Answer 14

Basic input and output system

Question 15

Motherboard

Answer 15

A circuit board that connects all of the other components

Question 16

HTML

Answer 16

Hypertext markup language – used to create webpages

Question 17

Web browser

Answer 17

software that interprets HTML to reproduce a webpage

Question 18

CSS

Answer 18

Cascading style sheet used to centralise the format/style of a website